Results 11 to 20 of about 12,082,846 (215)

On the extended Euler system and the Jacobi and Weierstrass elliptic functions

open access: yesJournal of Geometric Mechanics, 2015
We study the extended Euler systems (EES) as an initial value problem. Particular realizations of it lead to several Lie-Poisson structures. We consider a 6-D Poisson structure that fit all of them together.
FRANCISCO Crespo, Sebastian Ferrer
exaly   +2 more sources

On the Solution of a Conformal Mapping Problem by Means of Weierstrass Functions [PDF]

open access: yesComputational Mathematics and Mathematical Physics, 2022
The conformal mapping problem for the section of a channel filled with porous material under a rectangular dam onto the upper half-plane is considered. Similar problems arise in computing of fluid flow in hydraulic structures.
M. Smirnov
semanticscholar   +1 more source

Kerr geodesics in terms of Weierstrass elliptic functions [PDF]

open access: yesPhysical Review D, 2023
We derive novel analytical solutions describing timelike and null geodesics in the Kerr spacetime. The solutions are parameterized explicitly by constants of motion -- the energy, the angular momentum, and the Carter constant -- and initial coordinates ...
Adam Cieślik, E. Hackmann, P. Mach
semanticscholar   +1 more source

Fractal Calculus on Fractal Interpolation Functions

open access: yesFractal and Fractional, 2021
In this paper, fractal calculus, which is called Fα-calculus, is reviewed. Fractal calculus is implemented on fractal interpolation functions and Weierstrass functions, which may be non-differentiable and non-integrable in the sense of ordinary calculus.
Arulprakash Gowrisankar   +2 more
doaj   +1 more source

Revisiting timelike and null geodesics in the Schwarzschild spacetime: general expressions in terms of Weierstrass elliptic functions [PDF]

open access: yesClassical and quantum gravity, 2022
The theory of Schwarzschild geodesics is revisited. Basing on a result by Weierstrass and Biermann, we derive a formula describing all non radial, timelike and null trajectories in terms of Weierstrass elliptic functions.
Adam Cie'slik, P. Mach
semanticscholar   +1 more source

N $$ \mathcal{N} $$ = 2* Schur indices

open access: yesJournal of High Energy Physics, 2023
We find closed-form expressions for the Schur indices of 4d N $$ \mathcal{N} $$ = 2* super Yang-Mills theory with unitary gauge groups for arbitrary ranks via the Fermi-gas formulation. They can be written as a sum over the Young diagrams associated with
Yasuyuki Hatsuda, Tadashi Okazaki
doaj   +1 more source

Approximate Analytical and Numeric Solutions to a Forced Damped Gardner Equation

open access: yesThe Scientific World Journal, 2022
In this paper, some exact traveling wave solutions to the integrable Gardner equation are reported. The ansatz method is devoted for deriving some exact solutions in terms of Jacobi and Weierstrass elliptic functions.
Alvaro H. Salas   +2 more
doaj   +1 more source

Time like geodesics for five-dimensional Schwarzschild and Reissner–Nordström anti-de Sitter black holes

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The time like structure of the five-dimensional Schwarzschild and Reissner–Nordström anti-de Sitter black holes is studied in detail. Different kinds of motion are allowed and studied by using an adequate effective potential.
P. A. González   +3 more
doaj   +1 more source

Boundary values of harmonic gradients and differentiability of Zygmund and Weierstrass functions [PDF]

open access: yes, 2012
We study differentiability properties of Zygmund functions and series of Weierstrass type in higher dimensions. While such functions may be nowhere differentiable, we show that, under appropriate assumptions, the set of points where the incremental ...
J. J. Donaire   +2 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy